Drug interactions
Oxcarbazepine + Rilpivirine
Severity: Contraindicated
Oxcarbazepine and Rilpivirine: contraindicated interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
Oxcarbazepine can lower rilpivirine plasma concentrations through induction of CYP3A4. Reduced exposure may lead to loss of virologic suppression and development of resistance to rilpivirine and the NNRTI class.
What this interaction means in plain words
Oxcarbazepine and Rilpivirine are not normally used together. Taking them at the same time is expected to cause harm or make one of them unsafe, so a different medicine is usually chosen for one of the two.
Oxcarbazepine belongs to Central Nervous System; Rilpivirine belongs to Anti Virals.
Why it happens
Oxcarbazepine induces CYP3A4, increasing the metabolism of rilpivirine, a CYP3A4 substrate.
What to do
Avoid the combination, as rilpivirine labeling contraindicates enzyme-inducing anticonvulsants of this type. Use an alternative antiseizure drug with no inducing effect, or an alternative antiretroviral regimen.
What to ask your pharmacist
- Is there an alternative to one of these two medicines for me?
- If both are essential, who is monitoring me and how often?
- Which symptoms mean I should stop and seek help straight away?
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Other interactions of Oxcarbazepine
Other interactions of Rilpivirine
- Carbamazepine + Rilpivirine Contraindicated
- Dexamethasone + Rilpivirine Contraindicated
- Dexlansoprazole + Rilpivirine Contraindicated
- Efavirenz + Rilpivirine Contraindicated
- Eslicarbazepine + Rilpivirine Contraindicated
- Esomeprazole + Rilpivirine Contraindicated
Frequently asked questions
Can I take Oxcarbazepine with Rilpivirine?
MediHelp rates the interaction as contraindicated. Oxcarbazepine and Rilpivirine are not normally used together. Taking them at the same time is expected to cause harm or make one of them unsafe, so a different medicine is usually chosen for one of the two. Oxcarbazepine can lower rilpivirine plasma concentrations through induction of CYP3A4. Reduced exposure may lead to loss of virologic suppression and development of resistance to rilpivirine and the NNRTI class.
How serious is the interaction between Oxcarbazepine and Rilpivirine?
MediHelp rates it contraindicated, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid the combination, as rilpivirine labeling contraindicates enzyme-inducing anticonvulsants of this type. Use an alternative antiseizure drug with no inducing effect, or an alternative antiretroviral regimen.
What other medicines interact with Oxcarbazepine?
MediHelp also lists interactions of Oxcarbazepine with, for example, Cabotegravir, Artemether / lumefantrine, Atazanavir. The full list is on the Oxcarbazepine page.
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